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Figure 8 Figure 8, A, shows a tracheid cell in plant vascular tisse. Letter B shows how the cell is supported by a tough poly
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Answer #1

1. Answer: Option D is correct
Explanation:
The given image represents a tracheid cell.
It is a component of the xylem and is involved in water transport.
The cell wall of a tracheid is composed of tough water-insoluble polymer known as lignin.
i.e. the cell wall is lignified.
The lignin is deposited during the secondary cell wall formation.

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